Automatic lubricating device for locks and bolts.



G. MENiEm AUTOMATQ- LUBB'I NG D i APP 1,265,351.

E, LI Tl N FILE FOR LOCKS AND BOLTS. Y26| |917- l Patented May 7,1918.

vc'aeisfron MENIEE', or PARIS, FRANCE.

AUTOMATIC LUBEICAEING DEVICE Eon LoCKs lAim Bours.V

To all whom z't may concern:

Be it known that I, GrAs'roNV Mnnmn, a`

citizen of the VFrench Republic, and resident ofParis, Seine, France,haveinvented certain new anda-useful improvements in'AutomaticLubricating Devices for Locks and Bolts, of which the following is aspecificattion.

This invention has for its object an auto# matic lubricatingdevice for:theessential working parts of locks and bolts, andin;

particular for the engaging members, latches or bolts proper; one objectof the invention is to render the closing of doors very quiet and easyand to avoid damage to or shaking of the door frames and posts `such asis generally caused by the resistance to sliding offered by a defective,dry or rusted bolt or latch when engaging with its catch plate.

Various diferent mechanical devices have been proposed in order tofacilitate the sliding engagement of bolts and latches and to render itquieter, but none of these, which were generally applied to the catchplate, have replaced in effectiveness the application of a drop of oilto the bevel of the bolt or latch, this being the one part of the boltwhich makes contact with the catch plate when a door is closed by simplepressure.y

The lubricating device forming the subject of the present invention isso constructed that it acts directly on each closing of the door tolubricate the sliding bolt or latch; it maintains the beveled surface ofthis latter in a perfectly lubricated condition at all times, and inview of its mode of action the eiicacy of thev device is certain.Moreover the simplicity of its construction renders possible theapplication of the device to existing locks. c

The device consists essentially of a greasy pad mounted on a lightspring and situated on or in the catch plate. The kbolt or latchSpecieation'of Letters Patent.

tions' a lock khavingthe catch plate thereof provided with the-device ina typical form;

Patented May 7,1918.. .Application filed May 26, 1917. SerialNo."171,208`. i

Figs. 4, 5 and 6 show modifications of this arrangement l l Referringfirst to ,Figsflk to 3,f it will be seen that the catch Aplate A yhas arpad l at the opening vproper for engagement/by thesliding bolt B of thelockC; the pad y1 is of any suitable material such as felt for'clothsaturated with/la: suitable lubricat- *ing'substance whichwill notbe affected by the atmosphere and will preserve its lubricating propertyfor a longtime. This pad is fixed by any convenient means at the lend ofa metal strip 2 serving as a spring, land-'supported inside the catchplate in any convenient manner.

When the door 1s open the greasy pad l .stands in the position of Fig. 1under the action of its spring 2. When the door is pushed'to close itthe beveled bolt B comes n i against the pad 1 as in Fig. 2, pushing itback while being wiped and lubricated on its beveled face, until theposition of Fig. 3 is'reached.

It willl be seen from the above that the lubricating of the bolt orlatch is effected at each closing of the door, and that as no oxidationof the engaging surface can possibly take place under these conditions,there can be no appreciable resistance to the sliding of the beveledface of the bolt over the catch plate so that the closing can beeffected without any shock or disturbance.

The spring which carries the greasy pad l, instead of acting like ashutter blocking the entrance to the slot of the catch plate as in Fig.l, and protecting this latter against any undesired entrance of foreignbodies, may be located at the base of the catch plate as in Fig. 4 whileacting in a similar manner. It may also be a coiled spring 3 arrangedand fixed in any convenient manner inside the catch plate as in Figs. 5and 6.

The spring-held greasy pad may also be combined with a support for thesame 1n,

order to form a device whichwill fit in the catch plate and will be heldthere by simple pressure, adhesion or gripping engagement.

An arrangement embodying a spring-held or elastic greasy pad may also beprovided vfor lubricating purposes in the engaging slot of .a dormant orpositively operated bolt, or of any other sliding, locking, or boltingappliance of rany ,kind such las is used in connection With doors.

Having thus described my invention what I claim as new and desire vtosecure by Letn ters Patent is l. The combination *Withv a lock having abeveled bolt, of 'a catch plate therefor hav"` ing a face over which'the beveled 'face "of the bolt is adapted to slide whenv eoming intoengagement, a pad oi' material adapted to Acarry lubricant, and .aspringy support therefor mounted in .the catch plateand adapted to hold:said pad in the aperture :behind the engaging face of said catch platein such a position that the pad must. .always be pressed back by theinclined tace of the bolt when moving forward to engage behind the-catoh plate, whereby sai-d pad is lthe catch plate in such a position4as to -forni an obturatingshutter for the Catch plate so long as thebolt of the lock is not engaging With the catch plate, said vpad beingadapted to be pressed back by the beveled face of the bolt ineniterin'ginto engagement Ebe` hind the catch plate, and to Wipe over,l the saidface of :the bolt While being Vpressed back thereby into theiapertuare'oi' the Catch plate. v i

GASTON MENIER. c

Copies of this patent'may be obtained for `fvfe cents eaoh,A byaddressing the Commissioner of Patents,

f Washington, D. C.

